One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,9)(4,6)(5,8)(7,11)(10,16)(12,14)(13,15)(20,28)(24,29)(27,32)(30,31)(33,34,39,41)(35,40,36,44)(37,38,47,48)(42,46,45,43)(2,4)(7,9)(8,12)(15,16)(17,18)(19,23)(20,29)(21,25)(22,26)(24,28)(27,30)(31,32)(33,35,39,36)(34,40,41,44)(37,45,47,42)(38,43,48,46)(17,19)(18,21)(20,27)(22,25)(23,26)(24,30)(28,32)(29,31)(33,36,39,35)(34,40,41,44)(37,45,47,42)(38,46,48,43)(1,3)(2,7)(4,9)(5,13)(6,11)(8,16)(10,14)(12,15)(17,19)(18,23)(20,27)(21,26)(22,25)(24,31)(28,32)(29,30)(33,37)(34,38)(35,42)(36,45)(39,47)(40,46)(41,48)(43,44) involution — undirected(1,4,6,2)(3,9,11,7)(5,12,14,8)(10,16,13,15)(17,20)(18,24)(19,27)(21,30)(22,28)(23,31)(25,32)(26,29)(33,38)(34,37)(35,43)(36,46)(39,48)(40,45)(41,47)(42,44)(1,5,6,14)(2,8,4,12)(3,10,11,13)(7,15,9,16)(17,21,22,23)(18,25,26,19)(20,30,28,31)(24,32,29,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.